Hehe Punin no offence here, but after the announcement of a lot better than expected performance KNC 28nm chip you begin 55nm chips sale started.
All we known that soon BF chip will be worth a penny.
1) You seam to not understand what you are talking about. It is not important if it is 28nm, 55nm or 1nm. The power efficiency is important.
2) If you order now, knc will not ship until November 15. I believe punin will offer immediete delivery after shipping current batch.